From: simran singhal Date: Sat, 1 Apr 2017 08:23:33 +0000 (+0530) Subject: iio: humidity: hdc100x: constify attribute_group structures X-Git-Tag: v4.12-rc1~84^2~283^2~19 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=757cff86a8942c50558bf91805f8e6bf0b6128b8;p=linux.git iio: humidity: hdc100x: constify attribute_group structures Check for attribute_group structures that are only stored in the attrs filed of iio_info structure. As the attrs field of iio_info structures is constant, so these attribute_group structures can also be declared constant. Done using coccinelle: @r1 disable optional_qualifier @ identifier i; position p; @@ static struct attribute_group i@p = {...}; @ok1@ identifier r1.i; position p; struct iio_info x; @@ x.attrs=&i@p; @bad@ position p!={r1.p,ok1.p}; identifier r1.i; @@ i@p @depends on !bad disable optional_qualifier@ identifier r1.i; @@ static +const struct attribute_group i={...}; @depends on !bad disable optional_qualifier@ identifier r1.i; @@ +const struct attribute_group i; File size before: text data bss dec hex filename 3459 488 0 3947 f6b drivers/iio/humidity/hdc100x.o File size after: text data bss dec hex filename 3507 424 0 3931 f5b drivers/iio/humidity/hdc100x.o Signed-off-by: simran singhal Signed-off-by: Jonathan Cameron --- diff --git a/drivers/iio/humidity/hdc100x.c b/drivers/iio/humidity/hdc100x.c index 265c34da52d1..aa17115f54c9 100644 --- a/drivers/iio/humidity/hdc100x.c +++ b/drivers/iio/humidity/hdc100x.c @@ -79,7 +79,7 @@ static struct attribute *hdc100x_attributes[] = { NULL }; -static struct attribute_group hdc100x_attribute_group = { +static const struct attribute_group hdc100x_attribute_group = { .attrs = hdc100x_attributes, };